US5609701A - Radial tire with bias cut woven nylon chafer fabric - Google Patents

Radial tire with bias cut woven nylon chafer fabric Download PDF

Info

Publication number
US5609701A
US5609701A US08/511,595 US51159595A US5609701A US 5609701 A US5609701 A US 5609701A US 51159595 A US51159595 A US 51159595A US 5609701 A US5609701 A US 5609701A
Authority
US
United States
Prior art keywords
tire
fabric
chafer
yarn
warp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US08/511,595
Inventor
Roger H. Soderberg
Michael J. Chekan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Milliken Research Corp
Original Assignee
Milliken Research Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Milliken Research Corp filed Critical Milliken Research Corp
Priority to US08/511,595 priority Critical patent/US5609701A/en
Assigned to MILLIKEN RESEARCH CORPORATION reassignment MILLIKEN RESEARCH CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEKAN, MICHAEL J., SODERBERG, ROGER H.
Priority to US08/661,389 priority patent/US5720322A/en
Application granted granted Critical
Publication of US5609701A publication Critical patent/US5609701A/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00Tyre beads, e.g. ply turn-up or overlap
    • B60C15/06Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0042Reinforcements made of synthetic materials
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00Woven fabrics designed to make specified articles
    • D03D1/0035Protective fabrics
    • D03D1/0041Cut or abrasion resistant
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/20Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
    • D03D15/283Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads synthetic polymer-based, e.g. polyamide or polyester fibres
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D03D15/49Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads textured; curled; crimped
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/573Tensile strength
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D9/00Open-work fabrics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60CVEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00Tyre beads, e.g. ply turn-up or overlap
    • B60C15/06Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
    • B60C15/0628Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/20Cellulose-derived artificial fibres
    • D10B2201/22Cellulose-derived artificial fibres made from cellulose solutions
    • D10B2201/24Viscose
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00Physical properties
    • D10B2401/06Load-responsive characteristics
    • D10B2401/063Load-responsive characteristics high strength
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00Industrial
    • D10B2505/02Reinforcing materials; Prepregs
    • D10B2505/022Reinforcing materials; Prepregs for tyres
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S152/00Resilient tires and wheels
    • Y10S152/14Fabrics
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T152/00Resilient tires and wheels
    • Y10T152/10Tires, resilient
    • Y10T152/10495Pneumatic tire or inner tube
    • Y10T152/10819Characterized by the structure of the bead portion of the tire
    • Y10T152/10828Chafer or sealing strips
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30Woven fabric [i.e., woven strand or strip material]
    • Y10T442/3065Including strand which is of specific structural definition

Definitions

  • This invention relates general to pneumatic radial tires and more specifically to chafer fabric for such tires to prevent abrasion of the tire with the wheel rim flanges when mounting and dismounting such tires.
  • Automotive tires as traditionally constructed employ as a carcass a polymeric material, such as robber, reinforced with textile cords and steel belts.
  • the wheel engaging portion of the tire is further reinforced by circumferentially extending cores of wire or other relatively rigid material known as "beads”. Extending at least partially about these beads and on their surface are “chafer strips” which are intended to resist abrasion of the tire by the rim flanges when the tire is mounted and dismounted.
  • Chafer fabric is conventionally prepared by flat weaving a fabric, wick-proofing and then friction calendering green robber to both faces of the flat woven fabric and then bias cutting and slitting the calendered fabric into strips of from 1 to 5 inches in width.
  • the step of friction calendering green rubber to the woven fabric and/or skim calendering is carried out to facilitate the ease of bias cutting and piece lay up in green tire building, as well as promoting the vulcanization of the components making up the tire body in the final product.
  • the chafer fabric of this invention is a woven chafer fabric, that is to say a fabric having substantially straight warp and filling threads interlaced at substantially right angles.
  • a woven fabric should not be confused with a braided or plaited fabric wherein individual threads are skewed and are intertwined at acute angles with each other. Plaited fabrics are not useful as chafer fabrics due to a lack of dimensional stability of the fabric structure.
  • wick-proof fabric is essential in the preparation of tires of the tubeless type, and especially high pressure tubeless tires.
  • wick-proofing may be defined as a process wherein each cord of a fabric sheet is made impervious to the passage of air.
  • high air pressure in the air cavity pushes against the inner surface, and significantly at the bead area, and if the fabric in the chafer is not impervious to the passage of air, air will penetrate the individual cords which then serve as conduits to wick air into the tire body causing blistering and delamination of rubber or leading to the outside atmosphere thereby reducing the internal load supporting air pressure of the tire with undesirable results.
  • Any of a wide variety of wick-proofing processes are satisfactory for use in conjunction with this invention, such as, for instance, wick-proofing processes of the type set forth in U.S. Pat. No. 2,978,784.
  • Monofilament yarns are widely used around the world because of the guaranteed wick-proof characteristic.
  • the monofilament yarn size must be kept small (380-440 denier) to keep it flexible, and therefore it is weak in tensile strength.
  • the warp construction must be kept relatively high, typically 22-25 ends/inch. Since chafer fabrics are generally used after being cut on the bias, the pick count is typically the same as the warp end count, 22-25.
  • warp tensile strength can be maintained at an adequate minimum level, 160 lb.fin. (grab method) while using a low end count (12-18 ends/in.). Since filling direction tensile is not critical to processing or performance in the tire, the monofilament yarn can be used in this direction at a possible range of 12-18 picks/in.
  • the dip pick-up in the warp will provide the wick-proof property while still allowing the multifilament yarns remain flexible.
  • the monofilament filling will only pick up enough RFL to provide adhesion, and the lower denier and low pick count will maintain filling direction flexibility.
  • FIG. 1 is a schematic of a conventional automotive tire showing the relationship of the various components of the tire.
  • FIG. 2 is a plan view of the new and improved chafer fabric used in the tire shown in FIG. 1.
  • FIG. 1 a typical tire construction is shown in schematic fashion.
  • the tire 10 consists of three sections, the tread area 12, the sidewall/shoulder area 14, and the bead area 16.
  • the tread area 12 is composed of primarily of the tread cap 18, which is directly over the steel belts 20, which are centered on the upper surface of the tire cord fabric ply 22.
  • the sidewall/shoulder area consists primarily of the tire cord fabric 22, additional rubber strips and the upper portions of the turned up flipper 24 and chafer strips 28.
  • the bead area consists primarily of the bead wire 26, the flipper 24, the chafer 28, and the tire cord fabric turn up 30.
  • the chafer fabric 28 is a rubber impregnated fabric, in the form of bias cut strips, which is applied to the bead area 16 of the tire in green tire construction.
  • the chafer strip was employed to reduce the chafing effect between the tire and the tire rim and to protect the plies underneath as well as aiding in producing bead shape and firmness in the bead area.
  • tubeless tires it provides the further function of preventing pressurized air from diffusing through the chafer yarns into the side wall or to the atmosphere causing sidewall blisters and the tire failure, or a flat tire. Therefore, these chafer yarns must be wickproof.
  • the chafer fabric 28 is a standard woven fabric having a monofilament synthetic nylon fill yarn 32 and a multifilament synthetic nylon warp yarn 34.
  • the fill yarn is about 420 denier monofilament nylon 6,6 yarn and the warp yarn is about 900 denier textured nylon 6, 6 multifilament yarn.
  • the above described chafer fabric 28 is a 14 ⁇ 14 plain weave but if desired, can be a balanced or unbalanced weave having 10-25 end per inch and 10-25 pick per inch with an RFL finish.
  • the preferred multifil warp yarns are nylon 6, 6 but other yarns such as nylon 6, polyester, rayon, etc can be employed. Nylon 6, 6, nylon 6 or polyester can be used as the monofilament fill yarn.
  • the warp yarn can be twisted or textured.
  • the denier of the warp yarn can be in the range of 400-1400 denier and the fill yarn can be in the range of 200-720 denier.
  • the weight of the chafer fabric can vary from 2.0-5.4 oz/yd 2 and of any weave type such as plain, twill, basket, oxford, or satin weave.
  • Chafer fabrics are typically open plain weave constructions so that rubber will flow through the interstices and imbed the fabric in the rubber at the surface of the bead area.
  • Warp yarn generally stays straight and round in shape due to the warp direction tension constantly applied during weaving and RFL finishing.
  • the filling yarns if multifilament (and particularly texturized) tend to flatten out, as there is little or no tension kept on them once the fabric is woven and during RFL application. As they flatten, they close up the interstices making them smaller and may even be plugged.
  • Multifilament filling yarns being soft and supple, also tend to shift causing a distorted and non-uniform weave.
  • Monofilament yarns on the other hand maintain their cross-sectional shape and do not flatten out by their nature, and because of their inherent stiffness they stay straight and uniformly spaced across the fabric. The result of the above is larger and more uniform interstices than found in a standard 100% multifilament chafer.
  • this invention combines the use of two forms of synthetic yarns in one chafer fabric to achieve the following:

Abstract

A wick proof woven chafer fabric for automotive radial tires has a monofilament fill yarn and a textured multifilament warp yarn. The chafer fabric comprises nylon yarns and is bias cut so that the warp and fill yarns extend at an angle to the bead of the radial tire.

Description

BACKGROUND AND SUMMARY OF THE INVENTION
This invention relates general to pneumatic radial tires and more specifically to chafer fabric for such tires to prevent abrasion of the tire with the wheel rim flanges when mounting and dismounting such tires.
Automotive tires as traditionally constructed employ as a carcass a polymeric material, such as robber, reinforced with textile cords and steel belts. The wheel engaging portion of the tire is further reinforced by circumferentially extending cores of wire or other relatively rigid material known as "beads". Extending at least partially about these beads and on their surface are "chafer strips" which are intended to resist abrasion of the tire by the rim flanges when the tire is mounted and dismounted.
Chafer fabric is conventionally prepared by flat weaving a fabric, wick-proofing and then friction calendering green robber to both faces of the flat woven fabric and then bias cutting and slitting the calendered fabric into strips of from 1 to 5 inches in width. The step of friction calendering green rubber to the woven fabric and/or skim calendering is carried out to facilitate the ease of bias cutting and piece lay up in green tire building, as well as promoting the vulcanization of the components making up the tire body in the final product.
It should be understood that the chafer fabric of this invention is a woven chafer fabric, that is to say a fabric having substantially straight warp and filling threads interlaced at substantially right angles. A woven fabric should not be confused with a braided or plaited fabric wherein individual threads are skewed and are intertwined at acute angles with each other. Plaited fabrics are not useful as chafer fabrics due to a lack of dimensional stability of the fabric structure.
It is therefore an object of the invention to provide a chafer fabric for tires which can be readily wick-proofed, calendered and molded.
Historically chafer fabrics have been produced out of cotton, but with the advent of the tubeless tire, the yarns in the chafer fabric had to prevent the high pressure air inside the tire from wicking (bleeding) along inside the yarn bundles and reaching outside the rim. If the air can reach the outside tire surface, the tire will slowly lose pressure and gradually go flat. Therefore a wick-proof fabric is essential in the preparation of tires of the tubeless type, and especially high pressure tubeless tires.
For purposes of this invention, the term "wick-proofing" may be defined as a process wherein each cord of a fabric sheet is made impervious to the passage of air. In tubeless tires, high air pressure in the air cavity pushes against the inner surface, and significantly at the bead area, and if the fabric in the chafer is not impervious to the passage of air, air will penetrate the individual cords which then serve as conduits to wick air into the tire body causing blistering and delamination of rubber or leading to the outside atmosphere thereby reducing the internal load supporting air pressure of the tire with undesirable results. Any of a wide variety of wick-proofing processes are satisfactory for use in conjunction with this invention, such as, for instance, wick-proofing processes of the type set forth in U.S. Pat. No. 2,978,784.
In conjunction with tubeless tires, rayon, nylon, and polyester continuous filament yarns became available, and these fibers required an adhesive finish which would adhere to the rubber of the tire. With multifilament yarns bundles this finish (generally referred to as RFL) can penetrate to the core of the yarn bundles (if proper procedures are followed) and block the passage of air. Monofilament yarns, typically nylon, are wick-proof by their nature, and only a small amount of RFL adhesive is needed for adhesion to the rubber.
Monofilament yarns (typically T-6 or T-66 nylon) are widely used around the world because of the guaranteed wick-proof characteristic. However, the monofilament yarn size must be kept small (380-440 denier) to keep it flexible, and therefore it is weak in tensile strength. For the woven fabric to be strong enough to withstand the tension applied during the tire industry's rubber calendering process, the warp construction must be kept relatively high, typically 22-25 ends/inch. Since chafer fabrics are generally used after being cut on the bias, the pick count is typically the same as the warp end count, 22-25.
The use of higher tensile, larger denier multifilament yarns ranging in size from 840-1260 denier, with the most common sizes being 840 and 1000 denier, is possible due to the flexibility provided by the many finer filaments these larger yarn bundles are comprised of. These yarns are either twisted or textured for processability through the textile manufacturing processes. Due to the higher strength, constructions in the range of 12 ends and picks to as high as 18 ends and picks are used. An inherent need of these multifilament yarns is to be impregnated to the core of the yarn bundle with RFL to make them wick-proof. To reliably accomplish this, dip pick-up levels range from 14% to as high as 35%. Monofilament yarn dip pickup, on the other hand, ranges from 3% to 9% which only has to impart satisfactory adhesion--not wick-proofness.
It is another objective of this invention to combine multifilament and monofilament yarns in one chafer fabric to optimize utilization of their physical properties while incurring minimum cost in the fabric. By using multifilament yarn in the warp, either twisted or textured, and monofilament in the filling, warp tensile strength can be maintained at an adequate minimum level, 160 lb.fin. (grab method) while using a low end count (12-18 ends/in.). Since filling direction tensile is not critical to processing or performance in the tire, the monofilament yarn can be used in this direction at a possible range of 12-18 picks/in. The dip pick-up in the warp will provide the wick-proof property while still allowing the multifilament yarns remain flexible. The monofilament filling will only pick up enough RFL to provide adhesion, and the lower denier and low pick count will maintain filling direction flexibility.
BRIEF DESCRIPTION OF THE DRAWINGS
Other objects and advantages of the invention will become clearly apparent as the specification proceeds to describe the invention with reference to the accompanying drawnings, in which:
FIG. 1 is a schematic of a conventional automotive tire showing the relationship of the various components of the tire; and
FIG. 2 is a plan view of the new and improved chafer fabric used in the tire shown in FIG. 1.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Looking now to FIG. 1 a typical tire construction is shown in schematic fashion.
Basically the tire 10 consists of three sections, the tread area 12, the sidewall/shoulder area 14, and the bead area 16. The tread area 12 is composed of primarily of the tread cap 18, which is directly over the steel belts 20, which are centered on the upper surface of the tire cord fabric ply 22. The sidewall/shoulder area consists primarily of the tire cord fabric 22, additional rubber strips and the upper portions of the turned up flipper 24 and chafer strips 28. The bead area consists primarily of the bead wire 26, the flipper 24, the chafer 28, and the tire cord fabric turn up 30.
As briefly discussed before, the chafer fabric 28 is a rubber impregnated fabric, in the form of bias cut strips, which is applied to the bead area 16 of the tire in green tire construction. Originally the chafer strip was employed to reduce the chafing effect between the tire and the tire rim and to protect the plies underneath as well as aiding in producing bead shape and firmness in the bead area. In tubeless tires it provides the further function of preventing pressurized air from diffusing through the chafer yarns into the side wall or to the atmosphere causing sidewall blisters and the tire failure, or a flat tire. Therefore, these chafer yarns must be wickproof.
For use as chafer fabric, it is desired to employ a woven fabric which has a low end count. To this end, the chafer fabric 28, as represented in FIG. 2, is a standard woven fabric having a monofilament synthetic nylon fill yarn 32 and a multifilament synthetic nylon warp yarn 34. In the preferred form of the invention the fill yarn is about 420 denier monofilament nylon 6,6 yarn and the warp yarn is about 900 denier textured nylon 6, 6 multifilament yarn.
The above described chafer fabric 28 is a 14×14 plain weave but if desired, can be a balanced or unbalanced weave having 10-25 end per inch and 10-25 pick per inch with an RFL finish. The preferred multifil warp yarns are nylon 6, 6 but other yarns such as nylon 6, polyester, rayon, etc can be employed. Nylon 6, 6, nylon 6 or polyester can be used as the monofilament fill yarn. The warp yarn can be twisted or textured. The denier of the warp yarn can be in the range of 400-1400 denier and the fill yarn can be in the range of 200-720 denier. The weight of the chafer fabric can vary from 2.0-5.4 oz/yd2 and of any weave type such as plain, twill, basket, oxford, or satin weave.
While the above yarn selections and construction will optimize classic properties at lowest practical cost, there is another property that will be optimized. Chafer fabrics are typically open plain weave constructions so that rubber will flow through the interstices and imbed the fabric in the rubber at the surface of the bead area. Warp yarn generally stays straight and round in shape due to the warp direction tension constantly applied during weaving and RFL finishing. The filling yarns if multifilament (and particularly texturized) tend to flatten out, as there is little or no tension kept on them once the fabric is woven and during RFL application. As they flatten, they close up the interstices making them smaller and may even be plugged. These multifilament filling yarns, being soft and supple, also tend to shift causing a distorted and non-uniform weave. Monofilament yarns on the other hand maintain their cross-sectional shape and do not flatten out by their nature, and because of their inherent stiffness they stay straight and uniformly spaced across the fabric. The result of the above is larger and more uniform interstices than found in a standard 100% multifilament chafer.
Another potential benefit of this fabric design is the ability to produce a tucked filling selvage that is acceptable to the rubber industry. Currently the tucked selvage created by many modern weaving machines is too dense a construction for chafer if multifilament yarns are used. Current practice is to slit the selvage off after finishing. This is costly, creates a land fill problem, and reduces the selvages tear resistance. 100% Monofilament chafers with tucked selvages are becoming accepted, even at their higher pick count, because these smaller diameter yarns still allow rubber strike-through. By tucking monofilament filling at low pick count, the rubber strike-through is satisfactory even with the multifilament warp yarns. The resulting selvage is strong and processes well at the calender in the tire plant.
In summary, this invention combines the use of two forms of synthetic yarns in one chafer fabric to achieve the following:
1.) Optimum performance and processability of the chafer from the unique properties of each yarn.
2.) Optimum low cost due to utilization of yarn sizes to meet tensile requirements.
3.) Optimum low cost due to low RFL consumption by the monofilament yarn.
4.) Excellent weave quality due to the stiffer monofilament filling yarn.
5.) Superior strike-through due to the non-flattening monofilament filling and the tension rounded multifil warp.
6.) Superior selvage due to the tucked monofilament filling that still allows satisfactory rubber strike-through.
7.) Further cost reduction due to elimination of the selvage cutting process plus the retention of the selvage yarns in the usable body of the fabric.
8.) An environmental benefit in that the trimmed selvage material no longer is baled and hauled to the land fill.
Although I have described the preferred embodiment of my invention, I contemplate that many changes may be made without departing from the scope or spirit of my invention and I desire to be limited only by the claims.

Claims (4)

What is claimed is:
1. In a tubeless tire having a bead area, a sidewall/shoulder area and a tread area, the improvement comprising a wickproof bias cut chafer fabric in the bead area for abrasion resistance during the mounting/dismounting of the tire to a rim, said chafer fabric being a woven fabric constructed of a nylon monofilament fill yam and a textured nylon multifilament warp yam having a denier in the range of 400-1400, said warp and fill yams both extending at an angle to the bead area of the tire.
2. The tire of claim 1 wherein the fill yarn has a denier in the range of 200-720.
3. The tire of claim 2 wherein the warp yarn is about 900 denier.
4. The tire of claim 3 wherein the fill yam is about 420 denier.
US08/511,595 1995-08-04 1995-08-04 Radial tire with bias cut woven nylon chafer fabric Expired - Fee Related US5609701A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US08/511,595 US5609701A (en) 1995-08-04 1995-08-04 Radial tire with bias cut woven nylon chafer fabric
US08/661,389 US5720322A (en) 1995-08-04 1996-06-11 Chafer fabric with textured nylon warp yarns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/511,595 US5609701A (en) 1995-08-04 1995-08-04 Radial tire with bias cut woven nylon chafer fabric

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US08/661,389 Division US5720322A (en) 1995-08-04 1996-06-11 Chafer fabric with textured nylon warp yarns

Publications (1)

Publication Number Publication Date
US5609701A true US5609701A (en) 1997-03-11

Family

ID=24035590

Family Applications (2)

Application Number Title Priority Date Filing Date
US08/511,595 Expired - Fee Related US5609701A (en) 1995-08-04 1995-08-04 Radial tire with bias cut woven nylon chafer fabric
US08/661,389 Expired - Fee Related US5720322A (en) 1995-08-04 1996-06-11 Chafer fabric with textured nylon warp yarns

Family Applications After (1)

Application Number Title Priority Date Filing Date
US08/661,389 Expired - Fee Related US5720322A (en) 1995-08-04 1996-06-11 Chafer fabric with textured nylon warp yarns

Country Status (1)

Country Link
US (2) US5609701A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5720322A (en) * 1995-08-04 1998-02-24 Milliken Research Corporation Chafer fabric with textured nylon warp yarns
US6142205A (en) * 1998-03-13 2000-11-07 The Goodyear Tire & Rubber Company Tire with composite ply structure
US6358346B1 (en) 2000-07-28 2002-03-19 The Goodyear Tire & Rubber Company Method of building tire with composite ply structure
US20060016507A1 (en) * 2004-07-20 2006-01-26 Federal-Mogul World Wide, Inc. Self-curling sleeve
US20070163305A1 (en) * 2004-07-20 2007-07-19 Baer Angela L Self-curling knitted sleeve and method of fabrication
US20120052759A1 (en) * 2010-08-31 2012-03-01 Gold-Joint Industry Co., Ltd. Industrial fabric
US20140345775A1 (en) * 2011-12-19 2014-11-27 Compagnie Generale Des Etablissements Michelin Tire comprising cables for reinforcing the casing having low perviousness, and textile threads associated with the casing reinforcement
CN106400264A (en) * 2015-07-22 2017-02-15 尚科纺织企业工业及贸易公司 Garment and process of preparation
US11084328B2 (en) 2018-11-29 2021-08-10 The Goodyear Tire & Rubber Company Tire reinforcement
CN114590079A (en) * 2020-12-03 2022-06-07 固特异轮胎和橡胶公司 Fabric structure for tire

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005082045A2 (en) * 2004-02-20 2005-09-09 Federal-Mogul Powertrain, Inc. Low-friction pull tape
WO2008022252A2 (en) * 2006-08-18 2008-02-21 Invista Technologies S.A.R.L. A hybrid fabric
US8276882B2 (en) * 2008-08-01 2012-10-02 The Boeing Company Wire bundle pull tool
US20220161601A1 (en) * 2020-11-20 2022-05-26 The Goodyear Tire & Rubber Company Fabric structure for a tire

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2934126A (en) * 1955-11-14 1960-04-26 Goodrich Co B F Tubeless tire
US2947340A (en) * 1957-06-21 1960-08-02 Firestone Tire & Rubber Co Tubeless tire and chafer therefor
US3040797A (en) * 1956-07-24 1962-06-26 Kleber Colombes Tubeless tire
US3902536A (en) * 1973-06-28 1975-09-02 Deering Milliken Res Corp Tire cord fabric
US3939893A (en) * 1973-06-28 1976-02-24 Deering Milliken Research Corporation Tire cord fabric
US4107371A (en) * 1977-10-25 1978-08-15 Johnson & Johnson Woven fabric that is relatively stiff in one direction and relatively flexible in the other
US5365988A (en) * 1992-03-05 1994-11-22 Milliken Research Corporation Pneumatic tire with fabric overlay

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1590809A (en) * 1976-11-05 1981-06-10 Teijin Ltd Tyre cord fabric and tyre construction
GB2240998B (en) * 1990-02-14 1994-05-18 George Alexander Ingus Stiffened webs and composite yarns
US5609701A (en) * 1995-08-04 1997-03-11 Milliken Research Corporation Radial tire with bias cut woven nylon chafer fabric

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2934126A (en) * 1955-11-14 1960-04-26 Goodrich Co B F Tubeless tire
US3040797A (en) * 1956-07-24 1962-06-26 Kleber Colombes Tubeless tire
US2947340A (en) * 1957-06-21 1960-08-02 Firestone Tire & Rubber Co Tubeless tire and chafer therefor
US3902536A (en) * 1973-06-28 1975-09-02 Deering Milliken Res Corp Tire cord fabric
US3939893A (en) * 1973-06-28 1976-02-24 Deering Milliken Research Corporation Tire cord fabric
US4107371A (en) * 1977-10-25 1978-08-15 Johnson & Johnson Woven fabric that is relatively stiff in one direction and relatively flexible in the other
US5365988A (en) * 1992-03-05 1994-11-22 Milliken Research Corporation Pneumatic tire with fabric overlay

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5720322A (en) * 1995-08-04 1998-02-24 Milliken Research Corporation Chafer fabric with textured nylon warp yarns
US6142205A (en) * 1998-03-13 2000-11-07 The Goodyear Tire & Rubber Company Tire with composite ply structure
US6536493B2 (en) 1998-05-29 2003-03-25 The Goodyear Tire & Rubber Company Tire with composite ply structure
US6358346B1 (en) 2000-07-28 2002-03-19 The Goodyear Tire & Rubber Company Method of building tire with composite ply structure
US20070163305A1 (en) * 2004-07-20 2007-07-19 Baer Angela L Self-curling knitted sleeve and method of fabrication
US7216678B2 (en) * 2004-07-20 2007-05-15 Federal Mogul World Wide, Inc. Self-curling sleeve
US20060016507A1 (en) * 2004-07-20 2006-01-26 Federal-Mogul World Wide, Inc. Self-curling sleeve
US20080105324A1 (en) * 2004-07-20 2008-05-08 Baer Angela L Self-curling sleeve
US7395680B2 (en) 2004-07-20 2008-07-08 Federal Mogul Worldwide, Inc. Self-curling knitted sleeve and method of fabrication
US20120052759A1 (en) * 2010-08-31 2012-03-01 Gold-Joint Industry Co., Ltd. Industrial fabric
US20140345775A1 (en) * 2011-12-19 2014-11-27 Compagnie Generale Des Etablissements Michelin Tire comprising cables for reinforcing the casing having low perviousness, and textile threads associated with the casing reinforcement
CN106400264A (en) * 2015-07-22 2017-02-15 尚科纺织企业工业及贸易公司 Garment and process of preparation
US11084328B2 (en) 2018-11-29 2021-08-10 The Goodyear Tire & Rubber Company Tire reinforcement
CN114590079A (en) * 2020-12-03 2022-06-07 固特异轮胎和橡胶公司 Fabric structure for tire
US20220176745A1 (en) * 2020-12-03 2022-06-09 The Goodyear Tire & Rubber Company Fabric structure for a tire

Also Published As

Publication number Publication date
US5720322A (en) 1998-02-24

Similar Documents

Publication Publication Date Title
US5609701A (en) Radial tire with bias cut woven nylon chafer fabric
US5365988A (en) Pneumatic tire with fabric overlay
US4073330A (en) Tire cord fabrics for belts of belted pneumatic tires
EP0335588B2 (en) Radial tyre
US3429354A (en) Tire cord constructions and tires made therewith
EP2439080B1 (en) A pneumatic tire with a woven or knitted reinforcement
US20100108231A1 (en) Non-load bearing cut resistant tire side- wall component and tire containing said component, and processes for making same
KR890003618B1 (en) Pneumatic tire reinforced with fabric
KR20210122695A (en) Shear band
US3902536A (en) Tire cord fabric
JPS5816903A (en) Pneumatic tire for car
EP3619052B1 (en) Reinforcement strip for a cap ply of a pneumatic tire
JP2010052486A (en) Pneumatic tire
US3939893A (en) Tire cord fabric
US20170144400A1 (en) Method for manufacturing a single belt/overlay component for a pneumatic tire
WO2012063180A1 (en) A reinforcement strip for a tire
US3419061A (en) Tubeless tire
CA1200745A (en) Woven wire fabric and tire made thereof
EP3659821B1 (en) Tire reinforcement
US20220161601A1 (en) Fabric structure for a tire
JP3559399B2 (en) Radial tire
US20160288575A1 (en) Pneumatic tire and method for making a pneumatic tire
JP2006232068A (en) Pneumatic tire
NZ214152A (en) Tyre reinforcement fabric: transverse threads overlying warps held by zigzag of fine fibre
JPH05179531A (en) Yarn having plurally layered structure and web using the same

Legal Events

Date Code Title Description
AS Assignment

Owner name: MILLIKEN RESEARCH CORPORATION, SOUTH CAROLINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SODERBERG, ROGER H.;CHEKAN, MICHAEL J.;REEL/FRAME:007608/0057

Effective date: 19950802

CC Certificate of correction
FPAY Fee payment

Year of fee payment: 4

REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362

FP Lapsed due to failure to pay maintenance fee

Effective date: 20050311